[Asterisk-Users] 160 analogue phones..

[Michael Sampson]

I guess if I was going to do this I would either have a sip adapter at 
each phone. Or have to * boxes. One is connected to the PRIs. Then 
connected to that via an IAX2 trunk is another asterisk box that is full 
of the 24 port FXO/FXS cards digium sells. You could expand this as much 
as you want by adding more asterisk boxes with the 24 port FXO/FXS cards.

Michael Sampson
Information Systems Manager
Customer Contact Services
msampson at yourccsteam.com
952-936-4000



Conrad Wood wrote:

>Does anyone have any recommendations on how to connect 160 analogue
>phones to an asterisk PBX?
>
>Background information:
>A client wishes to replace their current PBX with a new VoIP system.
>Currently they have 2 PRIs.
>I intent to set up 2 asterisk PBXs with Debian GNU/Linux on raided
>drives. These drives will be mounted only read-only to recover
>gracefully from power-cycles. I am considering 2 ISDNGuards in front of
>the machines.
>More to the point: The client has 160 existing analogue telephones which
>they don't really want to change right now, because a) they are very
>cheap b) the users don't need to re-train.
>
>I have thought of Rhino Channelbanks, but then realised I need to use 7
>of them and connect each with a T1. I don't really want to run 7 T1 +
>the 2 PRIs into one asterisk box for performance reasons.
>
>Ideally, several 48-Port SIP->FXS channelbank woulds be ideal I
>guess ;-). Does such thing exist? Or how do others do this? 
>
>Conrad
>
>
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